NSI45090DDT4G Datasheet | onsemi

Adjustable Constant Current Regulator & LED Driver 45 V, 90 - 160 m A + 15%, 2.7 W Package The adjustable constant current regulator (CCR) is a simple, economical and robust device designed to provide a cost effective solution for regulating current in LEDs. The CCR is based on patent- pending Self- Biased Transistor (SBT) technology and regulates current over a wide voltage range. It is designed with a negative temperature coefficient to protect LEDs from thermal runaway at extreme voltages and currents. The CCR turns on immediately and is at 20% of regulation with only 0.5 V Vak. The Radj pin allows Ireg(SS) to be adjusted to higher currents by attaching a resistor between Radj (Pin 3) and the Cathode (Pin 4). The Radj pin can also be left open (No Connect) if no adjustment is required. It requires no external ponents allowing it to be designed as a high or low- side regulator. The high anodecathode voltage rating withstands surges mon in Automotive, Industrial and mercial Signage applications. This device is available in a thermally robust package, which is lead-free Ro HS pliant and uses halogen- free molding pound. For the AEC- Q101 part please see the NSI45090JD datasheet. Features - Robust Power Package: 2.7 Watts - Adjustable up to 160 m A - Wide Operating Voltage Range - Immediate Turn-On - Voltage Surge Suppressing - Protecting LEDs - SBT (Self- Biased Transistor) Technology - Negative Temperature Coefficient - Eliminates Additional Regulation - These Devices are Pb- Free, Halogen Free/BFR Free and are Ro HS pliant Applications - Automobile: Chevron Side Mirror Markers, Cluster, Display & Instrument Backlighting, CHMSL, Map Light - AC Lighting Panels, Display Signage, Decorative Lighting, Channel Lettering - Switch Contact Wetting - Application Note AND8391/D - Power Dissipation Considerations - Application Note AND8349/D - Automotive CHMSL http://onsemi. Ireg(SS) = 90 - 160 m A @ Vak = 7.5 V Anode 1 3...